/Engine/Plugins/VirtualProduction/ICVFXTesting/Source/ICVFXTesting/Public/ICVFXTestControllerBase.h
Called when a state change is applied to the module. States are game-driven.GetCurrentState()== OldState until this function returns
virtual void OnStateChange ( [FName](API\Runtime\Core\UObject\FName) OldState, [FName](API\Runtime\Core\UObject\FName) NewState )